Treatment for a strong odor in the urine

According to the major symptom you describe, heavy unpleasant urine odor (like burning rubber), if this is the only change, it might be due to food or drinks you ingested, such as an asparagus, certain kinds of red meat, coffee, dark tea, synthetic vitamin tablets, onion, garlic, etc. You might discover what it is provoked from, just by noticing and remembering what you eat or drink. Also, this might appear due to highly concentrated urine due to insufficient water intake on a daily basis (at least 2 litres=10 glasses of water daily and even more, only if the kidneys are functioning well).

But, if there are additional symptoms, such as a strong, persistent urge to urinate, burning sensation when urinating, passing frequent, small amounts of urine, blood in the urine (hematuria) or cloudy odorous urine with bacteria in it (bacteriuria), UTI-urinary tract infection might be the reason of this strong unpleasant smell. If this is the case, you might start helping yourself with a cranberry juice or a cranberry extract. If this does not help in few days, you might want to visit your family doctor to prescribe an antibiotic treatment, for at least 10-14 days.